Anritsu

A vector network analyzer (VNA) measures the magnitude and phase of an electrical network, like a filter or amplifier. Vendors have recently come up with a new acronym, “PNA” – essentially a vector network analyzer, with the “P” standing for performance, or sometimes precision. This type of network analyzer consists of a sweep oscillator (a synthesizer so that measurements will be repeatable), a test set including two ports, a control panel, an information display, and a few RF cables enabling connection to the device under test.